Air purifier and moistener



` July 9, 1929. Q G, HAWLEY 1.720.178

AI R PURIFIER AND MOISTENER Filed Dec. 4. 1925 fag.

Patented `iuly 9, 1929.

UNITED STATES PATENT OFFCE.

CHARLES GILBERT HAWLEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO CENTRIFIX COR- PORATION, OF CLEVELAND, OHIO, A CORPORATION OF OHIO. .i

AIR PURIFIER AND MOISTENER.

' Application filed December 4, 1925. Serial No. 73,281.

This invention relates to purifying and nmistening devices for the intake air of carburetors, and the like, for use with internal combustion engines.

',lhe purpose of the invention is, first, 4to pui-if).y the incoming air which is mixed with the vaporized hydrocarbon to form a conibustible fuel for internal combustion engines, such vaporizing and 'mixing of the air to form the fuel being ordimirily performed by a carburetor. in comiect-ion wit-h which this device ma) be, and preferably will he used.

The invention not only separates the mechanical impurities (dust) from the. air, which is a highl'vdesirable result, as is well known, but, furthermore, introduces a sufficient amountl of moisture in connection with the incoming air so that complete and perfect combustion may be accomplished even on dry and hot days, as when the motor is being run in midsunnner and the externa-l air isili an ultra-dr)v condition.

'l`he invention will be best. understood from the accompan \'iug drawing in which,

l"ig. 1 is a diagrammatic view illustratingr the various parts of the apparatus;

Vig. 2 is an enlarged, sectional, detailed view of a portion of the tn vixre ring. and the dust-ejector connection from the exhaust uur;

llfig. 215 isa transverse sect-inruil view througl'i the tuvre ring; and

Fig. 4 is a vertical sectional view of the tuyre ring and dust-cjecting pocket.

ltelerring t-o Fig. l. which shows diagrani. matieally certain portions of a. motor vehicle, the motor 25 is provided willi the usual radiator while a carburetor of an)y suit-able pattern, 7. fed with fuel in an)vv pre ferred manner. the fuel being admitted to a chamber S in which is located the usual throttle valve l l'or cont-rolling the admission of the fuel to the intake manifold 12, and thence to the motor. These parts are not illustrated in detail as they are, or may be, of common or known construction, and in lheniselvs form no part of the present invention.

'lhe air purifying and cleansing device consists of a circumferential series of tangential slit-like tuyeres 14. arranged annularly and serving to admit the atmospheric air in a plurality of tangential jets or sheets, under the suction or low pressure created by the motor, such jets or films of an: being caused to set up a whirling; motion viti-uu the body of the tuyres 14. Thus the dust is separated from the air. A pipe 16 leads from the water spa-ce preferably above the normal level of the water in the radiator 5, into the center of the space surrounded by the annular series of tuyeres 14, and conducts air, or vapor, which is more or les heated, and contains a sufficient amount of moisture to aid complete vaporization and combustion, such moistened air being caused to mingle with the whirling body of air within the tangential tu 'res 14.

As an important incident, the moisture from the radiator, or other source, wets the inner surfaces of the tuyre ring and ensures the perfectness of the dust-separating action of the apparatus.

rlhe exit portion of the tuyre ring 14 is pro vided with a preferably tapering end wall 20, which contains a pocket 22. A pipe is connect-ed at one end with the exhaust manifold 26, and the other end of said pipe opens into the central portion of the poeket22. A discharge pipe 27 has one end open and in suitable proximity with the discharge end of the pipe 25, so that hot gas under pressure from the exhaust manifold 26 will pass through the pipe 25 and flow through the pipe 27. therebv creating a high vacuum and an ejeciing action at this point. which removes the heavier particles, such as dust. dirt, and other foreign matter. which have been separated from the air through the centrifugal action of the whirling films admitted by the tu'vires 14, thus ren'xoving from t-he incoming air all of such impurities. In this connection it is desired to state that the centrifugal action of the incoming air through the slit like openings of the tn vcres 14 causes the heavier particles to be deposited in the chainber formed by the wall 20, and below the lower openings of the tn vres (see Fig. 4), so that the ejecting action of the pipe 25 is free to remove all of such foreign matter .which has thus been separated from the air; so that such air will be in a highly purified condition when it passes into the chamber 8 to be mixed with the incoming vaporized fuel; and. at the same time the pipe 16 will admit a sufficient amount of moisture to such air to promote. vaporization, and increase the efficiency of the engine.

Having' thus described my invention, .what I claim new and desire to secure by S. Letters Patent is 1. The process of puryngs au* for use in internal combustion engines which comprises sub lividing the incoming` air into a plurality of circumferential tangential lihns to4 `set -up' av wliirlingimotion ami-separate the heavier impurities from said air, `and ejecting said impurities 'from the vicinity ot such whirling action by means under pressure derived from the exhaust of themotorg.

2. A device for purifying air for use in the canburetors of. internalcombustion engines, comprising a circumferential series of tangential? tuyresfior snbdiv-iding the incoming air. intoia series ot tangential lihns`r thus setting up'a whirling action= within said tn vres .and;scparating the impurities from the air, and' an ejecting device operated. from the pressure ol'the escaping gasesof the exhaust Afor discharging: such= impurities.-

BLAH apparatus 'ton puri living air for use in internal 'combustionengines. comprising a circumferential series ot slit-like tangential tuyres for separating impurities trom the incoming air, a chamber adjacent said tuy1'cs,. and an ejecting device opera-ted through pressure derived .from the exhausto'li the` engine'ion ejecting saidimpurities ifrom sa-idchamber.

et.' An apparatus 'for purifying air for use in internal? combustion engines comprising. in combinatiom aicircumterential series'oi slit-liketuyresarranged to impart ay whirlingr aetionfto'the incoming'air and separate the impurities thereiiromgmeansfor ladmitting moistened air to the interior of the whirling body, and ejccting means operated from pressure derived iirom'tf'heexhaust for discharging tlieimpurit-ies from said tu yres.

5. An apparatus of the class described comprising, in combination7 a centrifugal unit embodyinga lplurality of tangential slitlil\'e tuyres for receiving impure air to 'be mixed vwith the iuel of an internal combustion engine, ejeeting means operated by pressure derived 'from the hot exhaust ofthe engine for discharging the impurities from the neighborhood o'li said' tuyres,.means tor conducting the puri lied air'together with vaporized fuel; to the motor., and moansfor controlling the mixture o air andv fuel..

(i. An apparatus for purifying. air for use in internal combustion engines, comprising,

CHARLES GILBRT HaWLnY. 

